硅烷化玻璃微球总烃柱 非甲烷总烃监测结果准确性

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非甲烷总烃监测结果准确性
非甲烷总烃监测结果准确性 详细信息：

总烃柱：

固定相：硅烷化玻璃微球

粒度：80-60目
规格：2m*4mm，2m*3mm，2m*1/8（安捷伦，岛津）
型号：HH-NMHC-2

应用：HJ 604-2017 环境空气 总烃、甲烷和非甲烷总烃的测定 直接进样-气相色谱法

浩瀚色谱（山东）应用技术开发有限公司结合非甲烷总烃监测工作实际情况,对样品采集、保存与运输、分析测试与数据处理、采样容器清洗与保存等过程详细研究后发现,采样容器从样品中吸附吸收的难挥发性与高化学活性组分和其自身的本底干扰对监测结果准确性的影响严重,且其中残留的污染物使用传统方法难以消除。为此,通过改进采样容器清洗方法、完善相关质控措施和制定采样容器合格清洗与分类管理的判断依据,以降低各影响因素对非甲烷总烃监测结果准确性的影响。


非甲烷总烃监测结果准确性 测试谱图：




Accuracy of non-methane total hydrocarbon monitoring results
Accuracy of non-methane total hydrocarbon monitoring results Details:

Total hydrocarbon column:
Stationary phase: silanized glass microspheres

Particle size: 80-60 mesh
Specifications: 2m*4mm, 2m*3mm, 2m*1/8 (Agilent, Shimadzu)
Model: HH-NMHC-2
Application: HJ 604-2017 Ambient air Determination of total hydrocarbons, methane and non-methane total hydrocarbons Direct injection-gas chromatography



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. combined with the actual situation of non-methane total hydrocarbon monitoring work, after detailed research on the process of sample collection, storage and transportation, analysis and testing and data processing, sampling container cleaning and storage, etc., it was found that the sampling container is from the sample The non-volatile and highly chemically active components absorbed by the medium and their own background interference have the most serious impact on the accuracy of the monitoring results, and the residual pollutants are difficult to eliminate using traditional methods. To this end, by improving the cleaning methods of sampling containers, improving relevant quality control measures, and formulating the basis for judging the qualified cleaning and classification management of sampling containers, the influence of various influencing factors on the accuracy of non-methane total hydrocarbon monitoring results is reduced.


Accuracy of non-methane total hydrocarbon monitoring results Test spectrum: